CODEWITHSUNDEEP
asp.netasp.net-web-api
Rohit Sonaje
Rohit Sonaje

Reputation: 532

How to validate email in ASP.NET Web API 2.0?

Please provide me regular expression to validate email id like below in web api method:

// GET: users/sample%40email.com
[Route("users/{emailAddress:regex()}")] 
public IHttpActionResult GetUser(string emailAddress)

Here i need regular expression which will validate email like sample%40email.com and will work in :regex() of web api route attribute.

Upvotes: 1

Views: 8513

Answers (3)

Rohit Sonaje
Rohit Sonaje

Reputation: 532

Below solution worked for me. Thanks for the help.

// GET: users/sample%40email.com    
[Route("users/{emailAddress:regex(\\[A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4})}")] 
public IHttpActionResult GetUser(string emailAddress)

Upvotes: 3

Yuri
Yuri

Reputation: 2900

What version of framework do you use? If this is framework 4.5 you apply Email attribute

 [EmailAddress(ErrorMessage = "Not a valid email")]

RegEx will look like this

^[a-zA-Z0-9_.+-]+@[email]+\.[a-zA-Z0-9-.]+$

Upvotes: 11

William Xifaras
William Xifaras

Reputation: 5312

You have several options to validate the email address. You can use regex or MailAddress Class.

Regex

[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?

Usage

bool isEmail = Regex.IsMatch(emailAddress, @"\A(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?)\Z", RegexOptions.IgnoreCase);

Using MailAddress

public bool IsValid(string emailAddress)
{
    try
    {
        MailAddress m = new MailAddress(emailaddress);

        return true;
    }
    catch (FormatException)
    {
        return false;
    }
}

Upvotes: 4

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